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How to tell if thermostat is bad on a BMW 325i?

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How to tell if thermostat is bad on a BMW 325i?

Here are the signs your car thermostat is failing: The temperature gauge reads high and the engine overheats. The temperature changes erratically. The vehicle's coolant leaks around the thermostat or under the vehicle.

How do I know if my BMW thermostat is bad?

How do you tell if your BMW has a bad thermostat? Thermostats fail in one of two ways; they either fail stuck open or fail stuck closed. When they fail in a closed fashion its usually easy to tell because your car will likely experience severe overheating problems with the temperature needle buried in the red.

Is your car’s thermostat stuck closed?

Your vehicle needs a functional thermostat to regulate coolant temperature and keep the engine performing at its best. You may be dealing with a faulty thermostat if your vehicle’s temperature gauge reading is high into the red mark. This could mean that the thermostat is stuck closed, causing the engine to overheat.

Can a bad thermostat make my engine heat not work?

Engine Temp is at Noon at all conditions. Can bad thermostat make my heat not work Followup from the Pelican Staff: Yes, if it is stuck open. Is there hot coolant getting to the heater core? - Nick at Pelican Parts Derek November 6, 2014 I have to do this every year on my 2001 325xi e46 wagon winter edition.

How long does it take for an E90 thermostat to go bad?

The answer for an e90 is under a minute, I haven't timed it but it should be quite quick. If your car is not idling at 600 after 30 seconds to a minute it is most likely that your thermostat has failed and when they fail they fail open.

Below you will find two interesting articles on a similar topic 👇

Why is my car overheating but it has coolant in it?

Can I put water instead of coolant in my BMW?

Tired of looking for a video for your question?

Video Answer below 👇

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